No, you are responsible for how you treat others no matter where you are or what excuses you make for yourself.
When I was a fighter, I was not responsible for assault.
When I'm in a comedic roasting zone on the internet and roasting folks who are there voluntarily, I'm not responsible for bullying.
I understand you misapprehend these concepts, but there are kids out there who do these things NON voluntarily, and bullies out there who bully wherever they please.
What you want to do is game for attention and for folks to feel sorry for you, whereas this paradigm doesn't exist. You're the responsible party for where you've gone on the internet...
and to make matters worse, there's conveniently a warning for sensitive folks at the door. It doesnt get much clearer than that, but some drama queening efforts cannot be thwarted by mere moderator warnings. Such as life on the internet.